Six years of photometry of HD 185151 = V1764 CYG

Details Six years of photometry of HD 185151 = V1764 CYG Six years of photometry of HD 185151 = V1764 CYG

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....93..427k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 93, Feb. 1987, p. 427-429.

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4

Binary Stars, Electrophotometry, Light Curve, Stellar Rotation, Stellar Spectrophotometry, Radiant Flux Density, Starspots, Stellar Orbits

Scientific paper

The authors present another five years of photoelectric photometric data on the binary HD 185151 = V1764 Cyg to supplement the 1980 data presented by Bopp et al. (1982). The new data have been examined graphically in two ways. First, the authors show that the light curve, which Bopp et al. (1982) found from their data to be characterized by a neat sinusoidal wave, appears from their data to have evolved into a more complicated shape. Second, the authors derive, by reading off times of relative maximum and minimum light, an improved value for the photometric period. They conclude by noting that, in terms of the starspot model suggested by Bopp et al. (1982), the rotation of the spotted star in the system would be almost perfectly synchronized with the orbital motion.

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